In a distant spiral arm of our Milky Way galaxy, some 1,480 light-years from Earth, a star, KIC 8462852, but informally called "Tabby's Star" or "Boyajian's Star" is acting in ways the world's astronomy community has never seen before, defying all known explanations. At random intervals, its light dims by as much as 22 percent, and appears to have gotten dramatically darker over the past century.
Tabby's star has provoked so much excitement, with speculation that it hosts a highly advanced civilization capable of building orbiting megastructures to capture the star's energy, that UC Berkeley's Breakthrough Listen project is devoting hours of time on the Green Bank radio telescope to see if they can detect any signals from intelligent extraterrestrials.
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